Process of making metal washers.



No. 677,883 Patented m 9, I90l. I

F. A. semen.

PROCESS OF MAKING METAL WASHERS.

(Application filed Oct. 27, 1900.)

(No Model.)

UNITED STATES PATENT Enron.

FRED A. NEIDER, or AUe n'srA, KENTUCKY.

PROCESS OF MAKING METAL WASHERS.

SPECIFICATION forming part of Letters Patent N 0. 677,883, dated July 9,1901.

Application filed October 27, 1900. Serial No. 34,563 (No model.)

To all whom, it may concern:

Be it known that I, FRED A. NEIDER, a citizen of the United States ofAmerica, and a resident of Augusta, in the county of Bracken, State ofKentucky, have invented certain new and useful Improvements in Processesof Making Metal Washers, of which the following is a specification.

The object of myinvention is-to make metal washers without having in theprocess any waste metal. This object is attained by the means describedin the annexed specification and illustrated in the accompanyingdrawings, in which Figure 1 is a View showing a rod from which thewasher is formed fed forward and held firmly between the jaws of a visepreparatory to being swaged by a double plunger, the vise and theexterior member of the plunger being shown in vertical longitudinalsection and the rod and the interior member of the plunger in elevation.Fig. 2 is a front view of the vise. Fig. 3 is a view similar to Fig. 1,but showing the second step in the process. Fig. 4. is a similar viewshowing the third step. Fig. 5 is a similar view showing the fourthstep.

The vise consists of jaws A A, each with a semicircular groove, forminga cylindrical perforation when closed together of the size of rod B.

The double plunger consists of an exterior member 0, having an axialbore of the diameter of interior member c. Member 0 may be clampedwithin member 0, with its end flush with the end of the latter, and itmay also be advanced beyond the said end a distance slightly greaterthan the desired thickness of the washer to be produced.

In the first operation a length of rod B sufficient to form the washeris fed by suitable mechanism beyond the faces of the jaws and clampedbetween them by closingof the vise, the plunger being retracted, asshown in Fig.

1, the rod being in alinement with the interior member 0 and of thediameter thereof. In the second operation the plunger, with the ends ofthe members flush, is advanced to within a distance of the vise equal tothe thickness desired for the washer, thereby swaging a flat disk uponthe end of the rod, as shown in Fig. 2. In the third operation jaws A Aof the vise are opened slightly, so as no longer to clamp the rod, andmember 0 of the plunger is forced forward centrally through the disk,punching the central por tion out of it, leaving said portion integralwith the rod. In the fourth operation the plunger is retracted, member 0is drawn back into member 0, thereby stripping oif the completed washer,which falls into a suitable receptacle, and another length of rod is fedforward and clamped in the vise preparatory to .forming another washer,the part on the end of the rod which was punched from the center of thewasher just completed going to form part of the succeeding washer. It isthus seen that in the operation there is no waste metal.

In describing my invention only so much mechanism is shown as isnecessary to give a clear idea of the process.

What I claim is- The process herein described of forming washers whichconsists in feeding a rod forward between clamping-jaws a lengthsufficient to form a washer, clamping the rod between the jaws in thatposition, swaging a head of the size and thickness desired for thewasher upon the end of the rod, unclamping

